Temporomandibular Joint temporomandibular joint: The joint that facilitates mandibular movement, located between the head of the mandible and the temporal bone. http://dictionary.reference.com/browse/temporomandibular+joint Posted by oralsurgery on Apr 14th, 2012 12:02 am Filed under dental definitions . You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.